Angelique Kerber has admitted she has been surprised by the success she has enjoyed in a stellar 2016 campaign so far.
The 28-year-old had not managed to win a major title until her success in the Australian Open at the start of the year but the German has just kicked on from there.
A runner-up place at Wimbledon before a victory in the US Open final against Karolina Pliskova has seen Kerber become one of the biggest names in the game.
Having also reached the top of the world rankings, Kerber has admitted it has been a special year and one that she will never forget.
She told CNN: “It’s been an incredible year so far - the best of my career.
“There have been a lot of up and downs, so that’s why I’m really happy to be sitting here now as a grand slam champion and world No. 1.
“It means a lot to me because I’ve been working so hard in the last few years. To see that hard work paying off is very good. It’s just amazing.”